Home / 20,221.87-30,332.81-6,181.94

Finding the Fourth Proportional to 20,221.87, 30,332.81 and 6,181.94

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Solution

The fourth proportional to 20,221.87, 30,332.81 and 6,181.94 is: 9,272.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,221.87 : 30,332.81 = 6,181.94 : x
  2. Step 2: Convert to fraction form
    20,221.87/30,332.81 = 6,181.94/x
  3. Step 3: Cross multiply
    20,221.87x = 30,332.81 × 6,181.94
  4. Step 4: Simplify right side
    20,221.87x = 187,515,428.88
  5. Step 5: Solve for x
    x = 187,515,428.88/20,221.87
  6. Step 6: Final answer
    x = 9,272.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.